oog Matriarch Synthesizer Promises To Be The Latest Addition, page 1

Moog Music has filed a trademark application for ‘Matriarch‘ – for use with Electronic musical keyboards; Music synthesizers; Musical instruments.
No announcement has been made about the Moog Matriarch yet, but previous trademark applications – like ‘Moog One’ – became public well before the corresponding synth was introduced.
‘Matriarch’ follows in line with their previously ‘family-themed’ synth names, including the Mother-32, Brother From Another Mother & Grandmother.

The Moog Matriarch’s application’s Goods and Services description:

Electronic low pass filters for musical instruments; Electronic ring modulators for musical instruments; Electronic effects units for musical instruments; Sound frequency filters for controlling audio parameters by raising or lowering the gain of specific audio frequencies using a resonant filter; Sound frequency filters for controlling audio parameters by raising or lowering the gain of specific audio frequencies using a low pass filter, band pass filter, resonant filter or using a multiple resonant filter array and animating those frequencies using a built-in pattern generator

https://www.reddit.com/r/moog/comments/b48q1w/moog_has_trademarked_a_new_name_matriarch/